. Heat oil in a cooking vessel, cumin seeds and urad dal and red chilli and saute till the dal turns red. Remove and keep aside.
. In the same oil, add the green chillis and saute for a mt, remove and keep aside.
. In the same oil add the sliced tomatoes and fry for 8-9 mts or till the water evaporates. Turn off heat.
. Add the tamarind to the sauteed tomatoes and let it cool.
. First grind the cumin-dal mixture along with sesame seeds and then add the cooled tomato-tamarind mix and salt and grind to a paste.
. Heat oil in a pan, add the mustard seeds and once they splutter add the asafoetida and curry leaves and turn off heat.
. Pour over chutney and combine.
. Serve with tiffins like dosa or idli.